One of the best things about this film is the complete unpredictability of the plot and the actions of the characters. I became completely lost in that 'rabbit hole' feeling -- that these two men are destined for something unexpected, perhaps insane, and inevitably dangerous.
I just saw the DVD version of 'No Country for Old Men' and this film has that sort of compelling, fateful quality to it. You feel, after the story has completely sucked you in, that you are there with these men, trapped in this desperate world where anything can happen but won't (or will it?), where something good is around the next corner but there are no street signs to guide you to it.
This film is a must-see. Can't wait for it to come out on DVD!!!